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Vitamin K (Nutritional) Blood Test
Vitamin K (Nutritional) Blood Test - Contents
Results on my.medichecks health portal
Vitamin K (Nutritional) Blood Test

Vitamin K (Nutritional) Blood Test

A blood test to measure the levels of vitamin K, which is important in blood clotting as well as regulating blood calcium levels and bone metabolism.
1 test included 13 working days turnaround


Vitamin K refers to a group of fat-soluble vitamins that play a role in blood clotting as well as regulating blood calcium levels and bone metabolism. In the liver, vitamin K is required to produce 4 factors that are necessary for blood to properly clot: prothrombin and factors VII, IX, and X.

Most people get all the vitamin K they need by eating a varied and balanced diet. Because vitamin K is a fat-soluble vitamin, any vitamin K in the body that is not needed immediately is stored in the liver for future use. Green leafy vegetables including broccoli and spinach, vegetable oils and fortified cereals are all good sources of vitamin K. 

In the UK for those who eat a healthy, balanced diet a vitamin K deficiency is rare. However, those at risk of developing a vitamin K deficiency include those with conditions that limit absorption of dietary vitamins such as biliary obstruction, coeliac disease, ulcerative colitis and cystic fibrosis. Vitamin K supplements are also available but monitoring the dose is important as too much can be harmful, so it is advised you speak with your doctor before supplementing vitamin K.

This test measures the level of vitamin K in your blood.
Fast 8 - 10 hrs prior to sample being taken. Do not consume alcohol 24 hrs before test or cease prescribed medication without consulting your Doctor. Protect samples from light. Wrap in foil.

3 simple steps

  • Take the test

    Take the test - either using your kit or visit a clinic.
  • Post your sample

    Send your sample in the freepost pack to our fully accredited lab.
  • Get your results

    Get your doctor reviewed results on

Expert interpretation
of your results

One of our team of doctors will review your results and give you personalised advice based on your medical history, lifestyle and health and fitness goals.

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Your personal
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Discover the easy way to track your health through our online portal, View your results with doctor's advice, monitor any changes over time and see the improvements you can make to your health with simple lifestyle changes.

Questions? Let us help

Questions? Let us help

Our customer care team are on-hand to help you find the test that's right for you. Get in touch via phone, live chat or email.

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Our tests are not a substitute for seeing your doctor, especially if you are suffering symptoms. Our doctors will interpret your results based on the information you have provided, but will not diagnose, consult or provide any treatment. You will be advised to see your doctor for any necessary follow-up action.